<script setup>
import {getCurrentInstance, onMounted, ref,reactive} from "vue";
import * as echarts from 'echarts';
const {proxy}=getCurrentInstance()


const getImageUrl = (user) => {
  return new URL(`../assets/images/${user}.png`,import.meta.url).href
}
const tableData=ref([])
const CountData=ref([])
const ChartData=ref([])
const observer=ref(null)
const tableLabel=ref(
    {
      name:"课程",
      todayBuy:"今日购买",
      monthBuy:"本月购买",
      totalBuy:"总购买",
    }
)

//这个是折线图和柱状图 两个图表共用的公共配置
const xOptions = reactive({
  // 图例文字颜色
  textStyle: {
    color: "#333",
  },
  legend: {},
  grid: {
    left: "20%",
  },
  // 提示框
  tooltip: {
    trigger: "axis",
  },
  xAxis: {
    type: "category", // 类目轴
    data: [],
    axisLine: {
      lineStyle: {
        color: "#17b3a3",
      },
    },
    axisLabel: {
      interval: 0,
      color: "#333",
    },
  },
  yAxis: [
    {
      type: "value",
      axisLine: {
        lineStyle: {
          color: "#17b3a3",
        },
      },
    },
  ],
  color: ["#2ec7c9", "#b6a2de", "#5ab1ef", "#ffb980", "#d87a80", "#8d98b3"],
  series: [],
})
//这个是柱状图
const pieOptions = reactive({
  tooltip: {
    trigger: "item",
  },
  legend: {},
  color: [
    "#0f78f4",
    "#dd536b",
    "#9462e5",
    "#a6a6a6",
    "#e1bb22",
    "#39c362",
    "#3ed1cf",
  ],
  series: []
})

const getTableData =async () => {
  const data=await proxy.$api.getTableData()
  tableData.value=data.tableData
  // console.log(data)
}
const getCountData =async () => {
  const data=await proxy.$api.getCountData()
  CountData.value=data
  // console.log(data)
}
const getChartData =async () => {
  const {orderData,userData,videoData}=await proxy.$api.getChartData()
  // 对第一个图表进行X轴和series赋值
  xOptions.xAxis.data=orderData.date;
  xOptions.series=Object.keys(orderData.data[0]).map(val => {
    return{
    name:val,
    data:orderData.data.map(item => item[val]),
    type:"line"
    }
  })
  const oneEchart=echarts.init(proxy.$refs["echart"])
  oneEchart.setOption(xOptions)
  // 对第er个图表进行X轴和series赋值
  xOptions.xAxis.data=userData.map(item=>item.date);
  xOptions.series=[
    {
      name:"新增用户",
      data:userData.map(item=>item.new),
      type:"bar",
    },
    {
      name:"活跃用户",
      data:userData.map(item=>item.active),
      type:"bar",
    }
  ]
  const twoEchart=echarts.init(proxy.$refs["userEchart"])
  twoEchart.setOption(xOptions)
  // 对第3个图表进行X轴和series赋值
  pieOptions.series=[
    {
      data:videoData,
      type:"pie"
    }
  ]
  const threeEchart=echarts.init(proxy.$refs["videoEchart"])
  threeEchart.setOption(pieOptions)
//   监听页面的变化
//   如果监听的容器的大小发生变化 改变以后 会执行回调函数
  observer.value=new ResizeObserver((entries)=>{
    oneEchart.resize()
    twoEchart.resize()
    threeEchart.resize()
  })
  // 容器存在
  if (proxy.$refs["echart"]){
    observer.value.observe(proxy.$refs["echart"])
  }
}
const gettableLabel =async () => {
  const data=await proxy.$api.tableLabel()
  tableLabel.value=data
  // console.log(data)
}
onMounted(()=>{
  getTableData()
  gettableLabel()
  getCountData()
  getChartData()
})

</script>

<template>
<el-row class="home" :gutter="20">
  <el-col :span="8" style="margin-top: 20px">
<!--   shadow="hover"鼠标移入时有阴影效果-->
    <el-card shadow="hover">
      <div class="user">
        <img :src="getImageUrl('user')" class="user">
        <div class="user-info">
          <p class="user-info-admin">Admin</p>
          <p class="user-info-p">超级管理员</p>
        </div>
      </div>
      <div class="login-info">
        <p>上次登陆时间<span>2024-06-30</span></p>
        <p>上次登陆地点<span>北京</span></p>
      </div>
    </el-card>
    <el-card shadow="hover" class="user-table">
      <el-table :data="tableData">
        <el-table-column v-for="(val,key) in tableLabel" :key="key" :prop="key" :label="val">
        </el-table-column>
      </el-table>

    </el-card>
  </el-col>
  <el-col :span="16" style="margin-top: 20px">
    <div class="num">
      <el-card :body-style="{display:'flex',padding:0}" v-for="item in CountData" :key="item.name" shadow="hover">
        <component  :is="item.icon" class="icons" :style="{background:item.color}"></component>
        <div class="detail">
          <p class="num">￥{{item.value}}</p>
          <p class="txt">￥{{item.name}}</p>
        </div>
      </el-card>
    </div>
    <el-card class="top-echart" shadow="hover">
      <div ref="echart" style="height: 280px"></div>
    </el-card>
    <div class="graph">
      <el-card shadow="hover">
        <div ref="userEchart"  style="height: 240px"></div>
      </el-card>
      <el-card shadow="hover">
        <div ref="videoEchart"  style="height: 240px"></div>
      </el-card>
    </div>
  </el-col>
</el-row>
</template>

<style scoped lang="less">
.home{
  height: 100%;
  overflow: hidden;
  .user{
    display: flex;
    align-items: center;
    border-bottom: 1px solid #ccc;
    margin-bottom: 20px;
    img{
      width: 150px;
      height: 150px;
      border-radius: 50%;
      margin-right: 40px;
    }
    .user-info{
      p{
        line-height: 40px;
      }
      .user-info-p{
        color: #999999;
      }
      .user-info-admin{
        font-size: 35px;
      }
    }

  }
  .login-info{
    line-height: 30px;
    font-size: 14px;
    color: #999;
    span{
      color: #666;
      margin-left: 60px;
    }
  }
  .user-table{
    margin-top:20px ;
  }
  .num{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    .el-card{
      width: 32%;
      margin-bottom: 20px;
    }
    .icons{
      width: 80px;
      height: 80px;
      font-size: 30px;
      text-align: center;
      line-height: 80px;
      color: #ffffff;
    }
    .detail{
      margin-left: 15px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      .num{
        font-size: 30px;
        margin-bottom: 10px;
      }
      .txt{
        font-size: 15px;
        text-align: center;
        color: #999;
      }
    }
  }
  .graph{
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
    .el-card{
      width:48%;
      height: 260px;
    }
  }

}
</style>